31811195

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{113}}^1$

素因数の和:263

約数の個数: 32

約数和(自身を含む): 42747264

約数和(自身を除く): 10936069

約数列:

[1, 5, 13, 61, 65, 71, 113, 305, 355, 565, 793, 923, 1469, 3965, 4331, 4615, 6893, 7345, 8023, 21655, 34465, 40115, 56303, 89609, 104299, 281515, 448045, 489403, 521495, 2447015, 6362239, 31811195]

約数ペア:

[(1, 31811195), (5, 6362239), (13, 2447015), (61, 521495), (65, 489403), (71, 448045), (113, 281515), (305, 104299), (355, 89609), (565, 56303), (793, 40115), (923, 34465), (1469, 21655), (3965, 8023), (4331, 7345), (4615, 6893)]